Zobrazeno 1 - 10
of 175
pro vyhledávání: '"Osamu, Kojima"'
Autor:
Takayuki Hasegawa, Osamu Kojima
Publikováno v:
Applied Physics Express, Vol 17, Iss 5, p 051006 (2024)
In this work we investigate the effects of electric field screening induced by photogenerated carriers on terahertz wave radiation originating from transient phenomena in the electric field region of a GaAs epitaxial structure. The transient-phenomen
Externí odkaz:
https://doaj.org/article/8cfd98bf1f024bf38f7ac6c7a714a673
Autor:
Osamu, Kojima, 小島修
104
This thesis discusses the objective of my research; it begins chronologically with sorting out my creative activity process, the creative framework for my ceramic direction, and then identifies myself as a ceramist. In Chapter 1, I like to e
This thesis discusses the objective of my research; it begins chronologically with sorting out my creative activity process, the creative framework for my ceramic direction, and then identifies myself as a ceramist. In Chapter 1, I like to e
Externí odkaz:
http://ndltd.ncl.edu.tw/handle/70231215970362982791
Publikováno v:
AIP Advances, Vol 10, Iss 9, Pp 095016-095016-7 (2020)
The stability of excitons with large oscillator strengths at room temperature has been of great significance in device applications. In this paper, we report the effects of the ultrafast dissociation of excitons confined in a quantum well on optical
Externí odkaz:
https://doaj.org/article/724499f781a84cfaacc0b8ef55658468
Autor:
Yuji Matsuoka, Kenji Endo, Hidekazu Suzuki, Yasunobu Sawaji, Hirosuke Nishimura, Taichiro Takamatsu, Osamu Kojima, Kazuma Murata, Takeshi Seki, Shinji Horie, Takamitsu Konishi, Kengo Yamamoto
Publikováno v:
Asian Spine Journal, Vol 12, Iss 4, Pp 743-748 (2018)
Study Design Retrospective study. Purpose To investigate the relationship between preoperative total spinal sagittal alignment and the early onset of adjacent segment degeneration (ASD) after single-level posterior lumbar interbody fusion (PLIF) in p
Externí odkaz:
https://doaj.org/article/94726dda661b4fa38313f3d29752cad7
Publikováno v:
Applied Physics Express.
In this study, we report the generation of stable even-order nonlinear polarization in the above gap states in strained multiple quantumwells. Using the strain field, the even-order polarization to emit terahertz waves is generated in a zincblende cr
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::aecf12d3f54b375eb73e37c7e95f785a
https://doi.org/10.35848/1882-0786/acd676
https://doi.org/10.35848/1882-0786/acd676
Autor:
Osamu Kojima, Yuki Tarui, Takashi Kita, Avan Majeed, Pavlo Ivanov, Edmund Clarke, Richard A. Hogg
Publikováno v:
Optics Express
Magnetic fields can increase the intensity of terahertz (THz) waves due to changing the dipole moment direction using the Lorentz force. This study reports the increase in the THz-wave intensity generated by differential frequency mixing using commer
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::ba195ada3e99b2195640edc5ba822347
http://www.lib.kobe-u.ac.jp/handle_kernel/90009570
http://www.lib.kobe-u.ac.jp/handle_kernel/90009570
Publikováno v:
Optics Express. 29(15):24387-24395
Intense terahertz-wave emission in the higher frequency region can result in various applications such as terahertz spectroscopy and ultrafast data communication. In this study, an increase in terahertz waves by the overlap of exciton states in diffe
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::97a3e4ed8f0ae59329ad78fb1afa7c4d
https://hdl.handle.net/20.500.14094/90008469
https://hdl.handle.net/20.500.14094/90008469
Publikováno v:
Terahertz, RF, Millimeter, and Submillimeter-Wave Technology and Applications XV.
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::cd7d2b5e7cbc4e5ce76195fd33bdb71e
https://doi.org/10.1117/12.2608216
https://doi.org/10.1117/12.2608216
Publikováno v:
Terahertz, RF, Millimeter, and Submillimeter-Wave Technology and Applications XIV
High-resolution X-ray diffraction (HR-XRD), and low-temperature photoluminescence spectroscopy (LT-PL) are used to investigate the structural properties and inhomogeneities of high current density InGaAs/AlAs/InP resonant tunnelling diode (RTD) wafer
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::a4c927f8f6599d0e25e9755753b68ef8
https://doi.org/10.1117/12.2582781
https://doi.org/10.1117/12.2582781
Autor:
Kengo Yamamoto, Hirosuke Nishimura, Hidekazu Suzuki, Takeshi Seki, Yasunobu Sawaji, Taichiro Takamatsu, Kazuma Murata, Takamitsu Konishi, Yuji Matsuoka, Kenji Endo, Shinji Horie, Osamu Kojima
Publikováno v:
Asian Spine Journal
Asian Spine Journal, Vol 12, Iss 4, Pp 743-748 (2018)
Asian Spine Journal, Vol 12, Iss 4, Pp 743-748 (2018)
Study design Retrospective study. Purpose To investigate the relationship between preoperative total spinal sagittal alignment and the early onset of adjacent segment degeneration (ASD) after single-level posterior lumbar interbody fusion (PLIF) in p
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::8cca2c64f6d1576b96a52f8bc286d514
http://europepmc.org/articles/PMC6068422
http://europepmc.org/articles/PMC6068422